ostrander



R. K. OSTRANDER AIR ACTUATED ANIMATED DOLL March 24, 1964 2 Sheets-Sheet1 Filed April 17, 1961 March 24, 1964 R. K. OSTRANDER AIR ACTUATEDANIMATED DOLL ZSheets-Sheet' Filed April 17, 1961 United States Patent3,125,827 Am ACTUATED ANIMATED DOLL Robert K. Ostrander, 497 ProspectSt., Maplewood, NJ. Filed Apr. 17, 1961, Ser. No. 103,556 2 Claims. (Cl.46-120) This invention relates to air actuated animated dolls.

It is an object of my invention to provide an air actuated animated dollin which the energizing air is supplied by a device that is readily andfully uncouplable from the doll so that said device is not permanentlyconnected to the doll by means, as for example external visible tubing,which is aesthetically unattractive and plainly demonstrates theartificial method of actuation.

It is another object of my invention to provide an air actuated animateddoll of the character described in which the device for supplying airfor actuation of the doll is constituted by an accessory that a childnormally associates with a doll, although not for the purpose ofactuation.

It is another object of my invention to provide an air actuated animateddoll of the character described having a natural humanoid movement ofthe limbs when actuated.

t is another object of my invention to provide an air actuated animateddoll of the character described in which the actuating mechanism isreliable, rugged and foolproof so that rough handling by a child willnot interfere with its efiicieney.

It is another object of my invention to provide an air actuated animateddoll of the character described which can not be actuated accidentallyso that the actuation always must be deliberate and with the use of aspecial device for providing air pressure.

It is another object of my invention to provide an air actuated animateddoll of the character described in which the actuation is achieved bywhat appears to be a normal manipulation of the doll that is notconnected in a childs mind with mechanical actuation, to wit,pseudo-feeding of a liquid to the doll through its mouth althoughactually no liquid is being imbibed.

It is another object of my invention to provide an air actuated animateddoll of the character described which provides a mechanical actuationwherein the limbs experience slight random motions during and aftertermination of the mechanical actuation so as to resemble the fumblingmovements of an infant or a very young child and thereby heighten thehumanoid resemblance.

It is another object of my invention to provide an air actuated animateddoll of the character described in which the actuating mechanismconstitutes few and relatively simple parts, is inexpensive to make andeasy to install.

It is another object of my invention to provide an air actuated animateddoll of the character described in which the actuating mechanism doesnot interfere with the normal handling of the doll as, for example,swinging movement of its feet from a standing to a sitting position.

It is another object of my invention to provide an air actuated animateddoll of the character described which can be actuated with the head invarious positions so that a child at play with the doll can actuate thelimbs thereof by apparently feeding liquid to the doll with the mouthfacing upwardly or to one side.

It is another object of my invention to provide an air actuated animateddoll of the character described in which the desired air actuatedanimation is provided with the dolls thighs angled to the body in arealistically humanoid manner.

It is another object of my invention to provide an air actuated animateddoll of the character described in which a particularly good couplingseal is effected 3,125,827 Patented Mar. 24, 1964 ice between the dollsmouth and the device for supplying air under pressure to the doll sothat maximum action can be secured with a minimum of effort.

Other objects of my invention in part will be obvious and in part willbe pointed out hereinafter.

My invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which will beexemplified in the doll hereinafter described, and of which the scope ofapplication will be indicated in the appended claims.

In the accompanying drawings, in which is shown one of the variouspossible embodiments of my invention,

FIG. 1 is a perspective view of a doll constructed in accordance with myinvention, the same being shown in supine position with the head turnedto one side and with a pseudo-nursing bottle for supplying air underpressure applied to its mouth, the dot-and-dash line illustrations ofthe limbs indicating the positions of such limbs when the doll isactuated by squeezing the bottle;

FIG. 2 is a longitudinal central sectional view through the dolls torsoand illustrating the idle position of the actuating mechanism;

FIG. 3 is a view similar to FIG. 2 but showing the actuating mechanismin operated position;

FIG. 4 is a perspective view of the actuating mechanism as it appearswhen removed from the dolls torso, one of the pelvis ends of the legbeing illustrated in an exploded position with respect to saidmechanism;

FIG. 5 is a fragmentary sectional view through a hip joint of the dollshown in the preceding figures; and

FIG. 6 is a fragmentary sectional view through the mouth of said dolland illustrating the bottle in detachably coupled relationshiptherewith.

In general I carry out the several objects of my invention by providingan air actuated prime mover, such for example as a bladder, locatedwithin the hollow body of the doll, preferably inside the torso. Thebladder is connected, as by a conduit likewise located within the dollsbody, to an externally disposed socket, preferably the mouth of thedoll. A kinematic train, that is to say a mechanical linkage,interconnects the prime mover with one or more, usually all four, limbsof the doll. Said train in the preferred form of my invention includes aspring which is light enough to be noticeably flexed by the gravitytorque exerted by any one of the limbs whereby after the limbs have beenmoved, as by actuation of the prime mover, they will not immediatelycome to rest in a new position but will experience a limited, that is tosay slight, excursion or, in other words, quiver before coming to rest,so as to simulate the vague uncoordinated motions of a very young child.

Moreover, there is provided as an effective and necessary accessory ofsaid doll, a flexible self-form-maintaining resilient open-mouthedvessel having a hollow plug, i.e. nipple, which is adapted to bedetachably sealingly coupled with the socket in the doll whereby whenthe nipple is coupled with the socket and the vessel is squeezed the airpressure generated within the vessel will be transmitted to the primemover to actuate the same and thereby move, i.e. oscillate, the limbs ofthe doll. Preferably, the squeezable vessel has a volumetric capacity inthe order of or greater than the inflated, i.e. distended, butunstretched, volumetric capacity of the prime mover so that even ifthere is some slight loss of air there will be little or no difiicultyin securing excellent actuation of the dolls limbs.

Furthermore, in the preferred form of my invention the weight of thelimbs desirable is made small, e.g. by blow molding the limbs, and byutilizing bearings between the limbs and the dolls torso that arearranged to have low coefiicients of friction, whereby even the slightstrength of a young child is sufficient to enable the vessel to besqueezed enough to animate the limbs of the doll.

Referring now in detail to the drawings, the reference numeral denotesan animated doll constructed in accordance with my invention. Said dollincludes a standard hollow torso 12 which conventionally is molded, e.g.cast of a hard material, or injection molded from a synthetic plasticmaterial, or dip molded e.g. with an elastomeric material or slush orcentrifugal molded e.g. with a plastisol. Preferably, a torso of a dollembodying my invention is made of a material which is such or is made toa thickness sufiiciently great that the torso will be at leastsemi-rigid inasmuch as it has to provide a limb bearing, as soon will beseen, and in addition must provide a reaction member for the airactuated prime mover. Moreover the torso preferably is light and is madeand configured to provide as little friction as possible (without theuse of a bearing insert) at the shoulders and hip pivot points for thearms and legs. Therefore, desirably the torso is rather stiff and thinand may be molded of any somewhat rigid synthetic plastic, e.g.polyethylene or a high impact resin such as butadiene modified styrenecopolymer. It will be appreciated that such doll torsos areconventional.

The torso additionally includes a pair of arm openings (not shown) and apair of leg openings 14. The torso further includes a neck 16 having aneck opening 18. The neck has an external flange 2'0. All such openingsand said flange are customarily present in a dolls torso havingarticulated limbs and a rotatable head.

The doll further includes a pair of hollow legs 22 and a pair of hollowarms 24. The configuration of the legs and arms is conventional inshape, the same being dictated by public demand and the designers skill.Each limb has a proximal portion which I shall designate a head, andwhich is located within the body. Thus there is a head 28 for each armand a head 30 for each leg. Each head constitutes a wall that caps(closes) the proximal end of the limb. Between the head and the externalportion of each limb the limb is formed to include, as is usual, anannular groove 32 which is rotatable within the corresponding arm or legopening 14. It may be mentioned that each leg opening 14 lies in a planewhich is inclined to the longitudinal axis of the doll and also to aline perpendicular to the longitudinal axis of the doll. For example,the planes of said leg openings are about 45 to the longitudinal axis ofthe doll and also may be tilted forwardly. This is a conventionalorientation for said leg openings in the pelvis of an articulated doll,the openings being disposed in the fashion just described in order toallow the legs to swing in a realistic fashion from a standing tositting position. Thus the legs are close together when the doll isstanding and are spread apart when the doll is in a sitting attitude. Ihave mentioned this arrangement of the legs not because it is novel inthe doll forming the subject of my invention but because I wish it to benoted that I am animating a conventional desirable type of shoulder andhip articulated doll.

For a reason which later will be apparent, the head end of each arm andeach leg is closed, i.e. comprises a capping wall 34.

As I have mentioned earlier, it is desirable to keep the arms and legslight and for this purpose I may fabricate them by blow mold molding sothat their wall thicknesses are slight, although not so slight as tolose rigidity. Moreover I preferably use a material for the arms andlegs which is comparatively slick, i.e. has a low coefficient offriction, in order to allow the legs and arms to be turned in theirrespective openings by a relatively low torque. For this purpose saidlegs and arms may be made of polyethylene. To the same end (minimizationof journal friction), I provide a liberal clearance between the arm andleg openings and the annular grooves 32, as can be seen. in FIG. 5, sothat there is a loose fit at these points that facilitates ease ofrotation of the arms and legs.

The animated doll 10 further includes a hollow head 36 which, ingeneral, is of standard construction. Said head is provided with abottom opening which fits around the neck 16 of the torso and is held inposition by the flange 20 thereby enabling the head to be rotated fromside to side. Except for one feature which will be pointed out, the headis of any conventional construction, design and appearance and mayinclude, for instance, hair, eyelids, nose, mouth and eyes, movable eyesif desired.

I direct attention particularly to the mouth 38 which in accordance withthe present invention departs from the standard shape. Said mouthincludes a pair of parted lips 40 which between them define anexternally accessible cavity or socket 42 to which reference has beenmade earlier. Desirably, the head 36 is of a flexible, i.e. yielding, atleast somewhat resilient, material, e.g. rubber or an elastomericsynthetic plastic, so that the socket 42, if slightly expanded, willexert a constricting force. The socket tapers inwardly away from theface of the doll, the conical angle of taper being comparatively slight,e.g. about 5, although it will be understood that this figure is simplyexemplificative. The bottom 44 of the socket is enlarged to anapproximately mushroom shape having a diameter exceeding the diameter ofthe lower end of the conical portion. The head is pierced at the bottomof the socket to form a hole 46 leading from the bottom of the socket tothe interior of the head. This hole 46 is reinforced by an eyelet 4% theoutspun head 50 of which is located within the socket at the bottom 44thereof. The eyelet may be made of metal. Said eyelet most convenientlyis set into the head after the head has been formed, e.g. by molding orcasting. The end of the eyelet remote from the flanged head 50 protrudesfrom the inner surface of the dolls head to securely engage one end of aflexible conduit 52. The seal between said conduit and the eyelet istight.

Pursuant to my invention there is provided as a necessary and effectivepart of the doll llil a hollow vessel 54, desirably in some shape thatordinarily is associated in a childs mind with a doll. Morespecifically, I prefer to make the vessel 54 in the shape of a bottlelike a nursing bottle which a child, through mimicking its mothersaction, desires and expects to use by applying to the mouth of the doll.The vessel 54 is made of a flexible self-formmaintaining resilientreadily deformable material such as polyethylene so that it can besqueezed with ease by a child. The neck of the bottle is formed toinclude a nipple or plug 56 which is tightly secured to the bottle. Thenipple is provided with a longitudinal bore so that when the bottle issqueezed air will be expelled from the nipple opening. The nipple istapered to approximately match the taper of the socket 42 and preferablyis a little larger in cross-section than the socket so that wheninserted fully into the socket it will expand the socket and the socketin turn will constrict about the nipple to grip the same and prevent theleakage of air from between the nipple and socket. Also for the samepurpose, the tip of the nipple is formed with a somewhat mushroom shapedbead or protuberance 58 that approximately matches the shape of thebottom 44 of the socket but is slightly larger. Thereby an excellentquickly detachable coupling seal is formed between the nipple and thesocket when the two are interengaged and the bore 60 in the nipple thenin effect will constitute a concealed passageway connecting the interiorof the bottle 54 to the flexible conduit 52 whereby squeezing of thebottle will force compressed air through the conduit 52.

The end of the conduit 52 remote from the eyelet 48 is reinforced by aninternal eyelet and is tightly secured to the neck 62 of a thin walledbladder 64 that desirably is constructed to deflate into a flatcondition, as illustrated for instance in FIG. 2. Said bladderconstitutes the air actuated prime mover. When the bottle 54 is squeezedit will inflate the bladder. Thereby the bladder will bulge out from itsoriginal deflated flat shape and the change of shape experienced uponsuch inflation will, as soon will be seen, be translated into a forcefor animating the limbs of the doll.

The bladder 64 has its body disposed between the thorax wall 66 of thetorso 12 and an action plate 68. The latter may be made of sheet metaland desirably is shaped to approximately match the internalconfiguration of the front wall of the torso in the region of thebladder so that when the bladder is deflated the action plate will lieclosely adjacent said wall being spaced therefrom only, in substance, bythe bladder itself so as to insure maximum action upon inflation of thebladder.

Suitable means is included to IIlOllIlllI the action plate for movementtoward and away from the thorax wall, e.g. pivotal movement. Simply,this may constitute an extension 70 protruding upwardly (toward the headof the doll) from the action plate and formed with an elementary bearingconstituting a pair of transversely registered straps 72 having theirside edges struck free of the extension and raised above the same toreceive a wire axle 74. The ends of the axle are received in alignedopenings 76 in the neck 16 of the dolls torso. To hold the axle in placethe tips thereof are turned to lie against the outer surface of saidneck, said angled tips being concealed by the lower portion of the head.

The neck of the bladder is held against the action plate as by a pair ofgripping fingers 7-8 struck up from the plate and embracing the neck.The reinforcing eyelet in the end of the conduit 52 prevents the fingersfrom collapsing the conduit or the neck of the bladder.

It now will be apparent that when the bladder is inflated it will movethe action plate away from the thorax wall 66 which wall serves as areaction member for the air actuated prime mover. The resilient meansfor restoring the action plate to its idle position when the bladder isdeflated, this being the position shown in FIG. 2, forms part of thekinematic train (mechanical linkage) now to be described.

Said kinematic train connects the action plate to the limbs. The trainincludes a leaf spring 88 which in unstressed condition is subdividedinto two branches 82, 84 joined by an angle bend 86. The leaf spring islightly stressed in FIG. 2 being here deflected somewhat rearwardly(toward the back of the doll) from its unstressed condition whereby tomaintain a light closing pressure on the action plate when the bladderis deflated. The center of the leaf spring is located between a pair oftabs 88 extending downwardly from a flange 90 at the lower end of theaction plate (the ends closest to the legs).

The upper branch :84 of the leaf spring 80 (the branch closest to thehead) has permanently secured thereto, as by a rivet 92, a flattransversely elongated crossbar 94, said spring having its outer endjuxtaposed against a face of this bar. The opposite ends of the uppercrossbar 94 are received in matching slots (not shown) in the heads 28for the arms 24. Thereby when the action plate is depressed uponinflation of the bladder and if, as soon will be seen, the outer end(tip) of the lower (leg) branch 82 is held in a substantially fixedlocation although permitted to rotate, the outer end (tip) of the armbranch 84 will be caused to rotate about the axis of rotation of thearms. The rotation can be seen by comparing the idle position of the armcrossbar 94 as shown in FIG. 2 with the actuated position thereof asshown in FIG. 3. In other words, depressing the center of the leafspring by inflating the bladder will rotate the tip of the arm branch 84and since this tip is functionally integral with the arm crossbar 94 andfurthermore since said crossbar has its ends received in matching slotsin arm heads 28, the arms likewise will be turned.

The outer end (tip) of the leg branch 82 of the leaf spring 80 isconnected to a transversely elongated leg crossbar 96 which, like thearm crossbar, is flat. However the connection between the leaf springand the leg crossbar is not a rigid one as was the correspondingconnection for the arm crossbar. Rather this leg connection is a loose(lost motion) connection which permits the leg branch 82 to actuate(turn) the legs upon inflation of the bladder, but will not prevent thelegs from being turned by direct manipulation thereof from standing tositting position when the air bladder is idle.

In particular, the connection between the leg branch 82 of the springand the leg crossbar 96 is effected by forming an opening 98 in thecenter of the leg crossbar. The tip of the arm branch 82 has a reduced,i.e. slender, extension 100 that passes freely through the opening 98and is formed with an enlargement 102 located on the opposite side(rear) of the leg crossbar. Said enlargement prevents accidentaldisengagement of the leg crossbar from the leg branch of the leafspring.

In the idle position of the action plate, as shown for instance in FIG.2, the wide outer end of the leg branch rests flatly on the frontsurface of the leg crossbar 96. When the action plate is depressed uponinflation of the bladder so that the angle bend 86 is urged downwardly,the leg branch 82 will be rotated about an axis in the lower portion ofthe dolls torso as determined by the leg openings, this axis being thetransverse line between the centers of said openings. Inasmuch as theleg branch 82 flatly rests against the leg crossbar 96 such rotation ofthe branch will in turn rotate said crossbar.

It may be mentioned at this point that rotation of the two branches 82,84 is induced by actuation of the action plate because the ends of saidbranches are rotatively captive within the torso being so held by thearms and legs of the doll. In other words, pressure on the bend 86forces the leaf spring away from the front wall of the doll. However,the ends of the spring are anchored against such a movement but arepermitted only to turn in order to accommodate inward movement of thebend. This movement will, of course, stress the spring 80 so that whenthe pressure of air within the bladder is released, the spring will urgethe action plate upwardly to its idle position.

The opposite ends of the leg crossbar 96 are received in diametricalslots 104 one in each of the heads 30 for the legs. These slots have alength in excess of the width of the ends of the leg crossbar 96 so thatsaid crossbar can slide parallel to the lengths of the slots. Thisrelative sliding motion between the legs and crossbar 86 serves a dualfunction. First, it permits the tip of the leg branch 82 to slidelongitudinally of the dolls torso toward the crotch without jamming theaction of the spring 80 or the dolls legs. In this connection it will beobserved that the arm branch 84 of the leaf spring 80 is rigidlyanchored to the rotatable but longitudinally (of the doll)nontranslatable arm crossbar 94. However, when the action plate isdepressed the etfective or end-to-end length of the leaf springincreases due to the straightening thereof. This could not take placeunless the leg branch 84 were permitted to move downwardly toward thecrotch by the overly long slots 104. Second, because each leg 22 turnsabout an axis that is substantially inclined to the length of the spring80 and to the length of the leg crossbar 96, relative motion must takeplace between each leg and the crossbar when the leg turns. Thisrelative motion is permitted by the extra length of the slots 104.

To assemble the doll, the bladder is clasped to the action plate by thegripping finger 78. With the conduit 52 in place in the neck of thebladder the conduit is connected to the eyelet 48. The leaf spring 80 isinserted between the tabs 88 and the action plate, bladder, spring andcrossbars are slipped through the neck of the doll into the torso. Atthis time the axle 74 has not yet been inserted. Next said axle isslipped through the openings 76 and is engaged with the bearing straps 772. As part of the same operation, the tips of the axle are bent and thehead is connected to the neck 16.

Next, the legs and the arms are inserted in the legs and arm openings,the assembler being careful to align the slots in the arms and legs withthe ends of the arm and leg crossbars. The doll now is ready foroperation.

The doll is intended to be manipulated as follows:

It is placed in supine position with the legs outstretched. At this timethe slots in the arms and legs are so located that the feet are adjacentthe supporting surface and the bent arms reach upwardly toward the headbut are clear of the mouth as shown by the solid line positions of thearms and legs in FIG. 1. Now the nipple 56 is inserted into the mouthsocket 42. The ensuing coupling will automatically provide a tight sealfor the reasons already noted. Then the bottle 54 is squeezed.Preferably the volume of the bottle is in excess of the inflated volumeof the bladder, for example about three times as great, so thatsqueezing of the bottle easily inflates the bladder. This in turn willdepress the action plate and the angle bend 86. As the angle bend ismoved toward the back of the doll it will cause the arm and legcrossbars 94, 96 to rotate thereby turning the arms down and turning thelegs up. The extreme actuated positions of the arms and legs are shownin dot-and-dash lines in FIG. 1. It is not necessary to fully actuatethe arms and legs, small motions sometimes will be preferred.

It is interesting to note that because the arms are shorter and of lessWeight than the legs and the legs are not tightly fastened to thesprings through the crossbar, I achieve an erratic action, i.e., thearms may operate out of unison with the legs. In addition, the armsalone can be operated when the doll is in sitting position. In short,the arms pulsate regularly with the squeezing of the bottle and the legsmay move up and hold, then fall, etc.

Attention is called to the fact that due to the inclusion of the spring80 in the mechanical linkage interconnecting the bladder and the limbsthe movement of the limbs is not directly tied to the bladder but ratheris somewhat resilient so that when the action plate is stopped at anyposition, the limbs will move slightly further and then swing backslightly, i.e. oscillate over a small arc of excursion, thus lending avery humanistic appearance to the animated movement of the doll.

The spring 86 should not be so light that the arms and legs can gyrateunder slight vibrations nor should it be so stilf that a quiver will noteven be noticeable. Said spring should be sufficiently flexible topermit an excursion of a few degrees of the arms and legs when theaction plate is stopped in any position by causing the bottle tomaintain some shape, e.g. unsqueezed, partially squeezed, or squeezedenough to swing the action plate as far as it can go.

It thus will be seen that I have provided a doll in which I achieve theseveral objects of this invention and which is well adapted to meet theconditions of practical use. As various possible embodiments might bemade of the above invention, and as various changes might be made in theembodiment above set forth, it is to be understood that all matterherein set forth or shown in the accompanying drawings is to beinterpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. An animated doll comprising a hollow body, a leg having a closed endwithin the body, means journalling said leg to said body for rotationabout an inclined axis, said closed end having a slot therein, a socketexposed to the exterior of the body, an air actuatable prime moverlocated within the body, a conduit pneumatically connecting the primemover to the socket, a kinematic linkage mechanically energized by theprime mover, said kinematic linkage terminating in a rotatable flat endfreely slidably disposed in the slot, the length of the slot beingappreciably in excess of the width of the flat end, a deformableflexible resilient vessel having a plug with an opening therein, saidplug being shaped for sealing detachable coupling with said socketwhereby when the plug is coupled to the socket and the vessel issqueezed the air actuated prime mover will be energized to rotate theleg.

2. An animated doll comprising a hollow body, arms and legs, meansjournalling said arms and legs to said body, a head connected to saidbody, said head having a portion thereof in the shape of a mouth, saidmouth including a socket exposed to the exterior of the body, an airbladder located within the body, a conduit pneumatically connecting thebladder to the socket, an action plate within the body, means pivotallyconnecting the action plate to the body, said bladder being disposedbetween the action plate and an internal surface of the body, an angledleaf spring, means fixing one end of said spring to the arms, meansslidably connecting the other end of the spring to the legs, theintermediate portion of said spring being engaged by the action plate sothat when the action plate is swung by inflation of the bladder theangle of the spring is increased whereby to rotate the arms and legs, adeformable flexible resilient vessel having a plug with an openingtherein, said plug being shaped for sealing detachable coupling withsaid socket whereby when the plug is coupled to the socket and thevessel is squeezed the air bladder will be inflated to move the arms andlegs of the doll.

References Cited in the file of this patent UNITED STATES PATENTS1,859,268 Larson May 17, 1932 FOREIGN PATENTS 13,454 Great Britain 1889361,641 France July 23, 1906

1. AN ANIMATED DOLL COMPRISING A HOLLOW BODY, A LEG HAVING A CLOSED ENDWITHIN THE BODY, MEANS JOURNALLING SAID LEG TO SAID BODY FOR ROTATIONABOUT AN INCLINED AXIS, SAID CLOSED END HAVING A SLOT THEREIN, A SOCKETEXPOSED TO THE EXTERIOR OF THE BODY, AN AIR ACTUATABLE PRIME MOVERLOCATED WITHIN THE BODY, A CONDUIT PNEUMATICALLY CONNECTING THE PRIMEMOVER TO THE SOCKET, A KINEMATIC LINKAGE MECHANICALLY ENERGIZED BY THEPRIME MOVER, SAID KINEMATIC LINKAGE TERMINATING IN A ROTATABLE FLAT ENDFREELY SLIDABLY DISPOSED IN THE SLOT, THE LENGTH OF THE SLOT BEINGAPPRECIABLY IN EXCESS OF THE WIDTH OF THE FLAT END, A DEFORMABLEFLEXIBLE RESILIENT VESSEL HAVING A PLUG WITH AN OPENING THEREIN, SAIDPLUG BEING SHAPED FOR SEALING DETACHABLE COUPLING WITH SAID SOCKETWHEREBY WHEN THE PLUG IS COUPLED TO THE SOCKET AND THE VESSEL ISSQUEEZED THE AIR ACTUATED PRIME MOVER WILL BE ENERGIZED TO ROTATE THELEG.